CHIGGERS — FARRELL ^QQ 



and posterolateral setae long and about the same length. Pseudo- 

 stigmata set on or close to a line drawn between the postero- 

 lateral setae. Pedicel of sensilla distinct, enlarging into the ovoid 

 head ; anterior surface of head well clothed with setules, posterior 

 surface and distal end more sparsely covered. An oblique ridge 

 extends anterolaterally from near the anteromedian edge of each 

 pseudostigma, curving posteriorly near the lateral margin and 

 terminating near the posterior margin about halfway between 

 the posterolateral seta and the pseudostigma. 



Summary of standard data of the five specimens studied from 

 New York and West Virginia (S's from two specimens) : 



AW 60-65, mean 62.6; PW 81-87, mean 83.6; AP 26-32, mean 28.2; 

 SB 23-27, moan 25.2; ASB 25-29, mean 27; PSB 12-14, mean 12.8; 

 AL 69-83, mean 73.4; AM 32-40, mean 35.4; PL 65-73, mean 69.2; 

 S 25 and 27. Width of head of sensilla in two specimens, 15 and 15. 



Eyes: Two pairs; anterior pair slightly anterior to postero- 

 lateral setae; posterior pair posterior to scutum. Size large, 

 diameter of anterior eyes of five specimens, 14 to 16, mean 14.6 ; 

 of posterior eyes, 13 to 14, mean 13.2. 



Dorsal setae: With rather large, distinct setules; nude adjacent 

 to body. Length of humerals, 57 to 69 ; of setae near the middle 

 of the first posthumerai row, 54 to 57; of setae in the posterior 

 group, 34 to 44. 



Setal formulae for five specimens: 

 New York 



Germantown: 2 . . 10 . . 10 . . .. 9 .. 7 .. 5 .. 4 



Millertown : 2,. 10.. 9.. 2. .8. .6.. ..5 



West Virginia 



Hardy County: 2. .10.. 9..1..9..6..4 



2.. 11.. 9. .2. .8. .6. .4. .2 

 2 . . 10 . . 10 . . 2 . . 8 . . 7 . . 6 



Ventral setae: Poststernals similar in form to dorsals. Num- 

 ber of first sternals, 2 ; of second sternals, 2 ; of poststernals, 40 

 to 43. Length of first sternals, 40 to 52 ; of second sternals, 32 to 

 36 ; of setae near the middle of the first poststernal row, 25 to 32 ; 

 of setae in the posterior group, 36 to 41. 



Material: Borrowed from the Rocky Mountain Laboratory. 

 New York specimens are paratypes. Specimens from hosts: 



Myotis siibulatus leibii 

 New York 

 Germantown: Mar. 17, 1946, 1. 

 Eptesicus f. fuscus 

 New York 

 MUlertown: Feb. 12, 1947, 1. 



Myotis lucifugus 

 West Virginia 



Hardy County: Apr. 20, 1947, 3. 



